Can someone explain the structure?

So I've been playing SQUAD forever. You can hop in join a squad and since your SL can kick you , you just listen to your SL for objectives and you stay with your squad. Not joining a squad means you basically get no real kit so not an option to go alone. The map gives clear objectives as well.

I understand Reforger is a lot looser with your kit and your map. But whenever I watch gameplay to get an understanding of what to do, the actual play seems chaotic without a clear objective or any chain of camand. The lack of cammand and cohesion reminds me of Battlefield. Obviously this is not BF lmao.

The unrestricted potential of Arma is intriguing. But can you guys explain to me how it works and what to do when i hop in. Coming from SQUAD I'm used to just falling into line and listening to my SL.

Thanks.